Read the following statements.
Statement I: Ozone gas is continuously formed by the action of UV rays on molecular oxygen and also degraded into molecular oxygen in the stratosphere.
Statement II: DNA and proteins of living organisms preferentially absorb UV rays and its high energy breaks the chemical bonds within these molecules.
In the light of given statements, choose the correct answer from the options given below.

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Both statement I and statement II are incorrect.

Both statement I and statement II are correct.

Statement I is correct but Statement II is incorrect.

Statement I is incorrect but Statement II is correct.

answer is B.

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Detailed Solution

Ozone gas is continuously formed by the action of UV rays on molecular oxygen and also degraded into molecular oxygen in the stratosphere. An imbalance is created when ozone depleting substances like CFCs rare released into the atmosphere. This leads to depletion of ozone and exposure of humans to UV rays. DNA and proteins of living organisms preferentially absorb UV rays and its high energy breaks the chemical bonds within these molecules.

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